Wouldn't you rather download...? Unless you want to ride the bleeding edge, you can download up-to-date binaries.

PXE source code is maintained in a Subversion instance on svn.intalio.org, and an instance of Fisheye is available at http://svn.intalio.org for browsing revisions. An RSS feed of changes is also available.

To check out the source code for PXE, use the URL:

svn://svn.intalio.org/pxe/trunk

This is an anonymous read-only access. Requirements and separate instructions for building PXE are available.